Throttle-valve for hydrocarbon-engines.



PATENTED DEC. 10; 1907.

APPLICATION FILED 0OT.12, 1905.

' To all whom it may concern:

UN TE STATES PATENT; OFFICE.

CHARLES SCHMIDT, OF CLEVELAND, OHIO, ASSIGNO R TO PACKARD MOTOR CARCOMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF WEST VIRGINIA.

I Roi 873,387.

Specification of Letters Patent.

Patented Dec. 10,1907.

Application filed October 12. 1905- SerialNov 282-511- Be it known thatI, CHARLES SCHMIDT, a citizen of the Republic of France, and resident ofCleveland, Cuyahoga county, State of Ohio, have invented certain new anduseful Improvements in Throttle-Valves for Hydrocarbon-Engines, of whichthe following is a specification- This invention comprises improvementsin the throttling devices of hydrocarbon engines and it consists in atwo-part balanced valve arranged in the mixture pipe leading from thecarburetor to the en inc and means fofi independently operating t eparts of the v ve.

The invention will be described in detail in connection with theaccompanying drawing,

in which,

Figure 1 is a diagrammatic view illustrating means for operatingthethrottle valve va ve which is fitted to the opening in the valve 2.

The valves 2 and 3 are each mounted upon shafts 4 and 5, the valve 2being connected to the shaft 4 by a pin 6, while the valve 3 isconnected to the shaft 5 by a pin 7. The valve 2 is free to turn on theshaft 5 and the valve 3 is free'to turn on the shaft 4. On the shaft 4is a' suitable operating arm 8', while a similar arm 9 is carried by theshaft 5. It willbe evident that the valves 2 and 3 may be turnedindependently by their respective arms or levers 8 and 9, with the excetion that in its opening movement the va ve 2 will carry with it thevalve 3 owing to the beveled joint between them, while in its closingmovement the valve 3 will carry with it the valve 2 for the same reason.In operation however both valves may. be more or less open in which casethey may be operated independently.

In Figs. 4 and 5 are shown another form of 1 the invention in whichthere are two semicircular valves 10, 11, the valve 10 being rigidlyconnected with shaft 4, while the valve 11 is rigidly connectedwithshaft '5. It will be observed that these valves 10, 11, are entirelyindependent and either may be opened or closed, without affecting theother. The shafts 4, 5 are preferably mounted in bosses 12 on the sidesof the pi e or valve chamber 1. As shown in Fig. 4, t e shaft 5 isextended through valve 11 into a socket in valve 10, thus stiffening theshafts.

In Fig. 1 is illustrated one means of controlling the double throttlevalve. The arm 8 of valves 2 or 10 is connected by means of link 13 andlever 14 with the governor 15, controlling the motor. The arm 9 ofvalves 3 or 11 is connected by a link 16, elbow levers 17, and rod 18With'a setting lever 19'which may be locked in an desired position on asegmental rack 20. means of the connections 16 to 20, one of t e valvescan be set at an given opening desired, while the other va ve is leftfree to be controlled by the governor. 1

Any other arrangement of controllin devices for the valves may besubstitute for those shown, the resent invention consisting in thespecia construction of throttle va ve which permits of suitable controlof the inflow of mixture to" the engine.

Having described my invention what. I claim and desire to secure byLetters Patent is, y

1. In a throttling device for hydrocarbon engines, the combination of avalve casing, two opposite radially arranged coaxial shafts therein,independent valves on said shafts,

v and. means for controlling said valves includadapted jointly to closethe passage through said casing, and means for operating said Intestimony whereof I have signed I'ny valves independently. name to thisspecification in the presence of 10 3. In a throttling device forhydrocarbon two subscribing Witnesses. en ines, the combination with acylindrical va ve casing, of two semicircular valves CHARLES SCHMIDT adated jointly to closevthe passage through Witnesses:

sai valve casing, and means for operating H. R. SULLIVAN, sald valves1ndependently. W. L. MCGARRELL.

